Патент USA US2408284код для вставки
2,408,283 Patented Sept. 24, 1946 UNITED STATES. PATENT OFFICE y Morey E. Wollin, Bmoklin?; Mass. '1 Application December 2'7, 1944', Serial No. 569,981 '1 Claims. (01. '10-4l9)' ~ 1 2 The present invention relates to a pin tumbler 01' barrel lock which is in general use today and is considered an improvement over the older type various pins; the pins are all ?nally aligned and I = the cylinder may be turned. ' ' ‘ ~ , ‘ In the present invention the element positioned in the cylinder prevents'this type of action,and of vspring lock. The chief advantage in the barrel type pin tumbler lock is that it provides practi cally an in?nite combination of individual keys further provides such an indeterminate reaction ‘ toiany‘ such "operation that 'it is practically im possible to-align the pin in the desired manner and therefore makes it more di?icult to ?nd a for picking the lock. Further merits and ‘advan key which will open the lock. Due, however, to tages of the present invention will :be more fully the lock construction now generally used, the lock is far from pick-proof and, in fact, little skill is 10 understood from the description in the speci?ca tion set forth below when taken in connection required- to pick a barrel type lock, in some cases > > ' the picking of the lock being comparatively easier ‘ with the drawingin which?’ Figure I shows’ a sectional view through the than in the case of the old type spring lock. axis of the lock in the plane of‘t'he pins. for picking pin tumbler‘ locks although these 15 Figure 2" shows a section taken substantially on the section line A--A of Figure 1. ' methods have, for the most part, been concealed Various means and methods have been'provided ' Figure 3' shows a section similar tothat shown as far as possible and have been disclosed by the in Figure‘ 1 with the key inserted in the lock. manufacturers ‘of the locks only to the lock re Figure 4 shows a section substantiallylike that pairers and‘ locksmiths. shown in‘ Figure 2 with the cylinder partially 20 The present invention overcomes this objection turned, and ' to the pin tumbler lock in that it provides a a ~ 3 Figure 5‘ shows a. detail of constructionof an element shown in the other ?gures. means whereby the lock is practically pick-proof. The lock of the present invention is of the pin In the’ arrangement set forth in the drawing, tumbler type and may be opened with the usual l- represents the barrel or shell in which there is ?at key which may be grooved or scored with the 25 eccentrically positioned: a close ?tting core or usual markings providing a great variety of selec cylinder 2, the turning of which controlsthe 0p tive ‘keys that is possible in the combination of ' eration of the latch or the door bolt. A key "10 such a construction. In the present invention (Figure 3') inserted in the guideway ll’ corre instead of permitting the pins in the barrel to 30 sponding to the key under proper conditions may come in direct contact with the key, an inter mediate element. is provided in the cylinder of the, lock positioned within the barrel, which, ele ment is properly positioned by the key to arrange the'ends of the pins at the junction of the cir cumference of the cylinder and- the barrel so that the cylinder might be: turned. In this way any ‘ turn the cylinder or core}? for opening or closing‘ the latch or bolt on the door; The shell or barrel it may be'provided with a plurality of recesses as shown at'l2, 13-; M, l5‘, l6 and I‘! which may‘ be aligned in substantially the same plane‘ or in slightly di?erent planes perpendicular'to the axis of thecore or~cylinder. These recesses are shaped person attempting to pick the lock‘ will be faced to receive a plurality of pins 3; l8‘, i9; 25!, 21', 22 with the difficulty of adjusting the intermediate which fit into the recesses so that they may freely‘ I member in. the cylinder toprovide a second ad 40 move back and forth therein without a great deal ' justment of the-pin in the barrel. oi‘ friction but also without much play. Each recess is provided‘ with a spring 23 which forces the pin in the direction outward from the recess. As seen Figures _1' ‘and 3', the barrel or shell I" provided with a plurality of ‘slots 24, ‘25 and ' 26 extending radially outward from the'direction In the original methodoi picking a lock’ the pins protruding into the cylinder are snapped backward into‘ the recesses in the barrel while at‘ the‘same time slight tension is exerted on the‘ cylinder so that it may be turned a hair when I the pin has vcleared the cylinder. It has been found that none of thepins are accurately aligned ' of the center of the core2 in alignment with the so- that one or two‘ of them will receive the tension recesses in which the pins are positioned... These slots may be of such a width thatthe pins‘ iu'st Placed. upon. the cylinder as the cylinder is ten sioned. When, therefore, the cylinder gives way freely slide into‘ them, The slots may be wide slightly to pressure as the pins goup into the barrel, the cylinder will be slightly turned, pre-‘ ‘ be provided with straight or curved sides and straight or curved top walls from which the pins venting the pins from falling back into the cyl inder again. By continually snapping back the enough to include two or more pin recesses and project. 55 » The core 2 is also provided with slots 21, 28 and 2,408,283 3 4 29 which are aligned with the slots 24, 25 and 26 respectively when the core is ready to receive the the slots of said core and abutting on one end, the ends of said pins, the other end of said plate elements positioned in a keyway in said core, said key as shown in Figures 1 and 2. Each slot in the core carries a wedge-shaped plate or rocker member 5 shown in perspective in Figure 5. This last mentioned end being provided with an edge plate is provided with a pin 8 perpendicular to forming an obtuse angle and adapted to be en gaged by a key entering the lock and having a the face of the plate and extending both sides corresponding obtuse angle, therefrom. The pins rest in slots 3| and 32 which extend into the core 2 in a direction outward core ?tted to turn in the barrel’ said barrel hav 3. In a lock of the type described, a barrel, 2. from the side walls of the slots 21, 28, and 29, 10 ing a plurality of freely movable pins engaging said core, said core being slotted for ‘engagement two such slots 3| and 32 ‘to each of the slots 21, of said pins, p1ate elements positioned in the slots 28, 29. The wedges 5 are of such thickness that of said core and abutting on one end, the ends they will slide freely up and down the slots 21, of said pins, the other end of said plate elements 28 and 29 and at the same time pivot on the pins positioned in a keyway in said core, means pivot 8. The end walls in the slots 21-, 28' and 29 are ing said plate elements in the sides of said slot such that the turning of the wedges is limited or permitting the bottom of the plate elements to con?ned through corners of the wedges coming in engage a keyway in said core whereby when the contact with the end walls of the slot thus pre-. proper key is inserted in said keyway, the ends venting them from making a, complete rotation and holding them in an upright position, as 20 of the pins will lie at the periphery of said core. 4. In a lock of the‘ type described, a barrel, a viewed in Figure 1. The wedges, therefore, have core ?tted to turn in the barrel, said barrel hav freedom of motion up and down and also in tum ing about-the pivots, , ing a plurality of freely movable pins positioned ' therein, said barrel and core having continuing : As indicated in Figure 5, the wedges at their bottoms are provided with two faces 40 and III 25 slots aligned with said pins into which said pins move, wedge elements positioned for free motion which intersect at a point 1 in an acute angle in said slots in the core, means pivoting said at the bottom of the wedge. These faces, as indi wedge elements in the walls of said slots, said cated in Figure 3, rest on the sloping edges of the wedge elements engaging the ends of said pins key, 1 0 and when the key is in position to turn the core of the lock, the pins 3, I8, I9, 20, 2| and 22 30 on one edge thereof, and a keyway in said core aligned with the opposite edge of said wedge ele are all pushed back to points at the circumfer ments whereby when the proper key is inserted ence at the core so that the core may be freely in said keyway said pins have their ends posi turned. The wedges or plates 5, as indicated in tioned at the periphery of said core permitting Figure v3, may be of different heights as well as . 1 being provided with different angles, as indicated 35 the turning of said lock. 5. In a lock of the type described, a barrel, a by the group of lines 6 in Figure 5. It will also core ?tted to turn in the barrel, said barrel and be noted from Figures 1, 2 and 3 that the wedges said core having aligned slots, p1ate means posi may work up and down in the slot or cavities in tioned in said slots for turning in an axis per the barrel and core because of the recesses 24, 25 and 26 which are provided in the barrel. As 40 pendicular to the plane of said plate and trans lation in the plane thereof, a keyway positioned in said core aligned with said slot for positioning said plate means whereby the lock may be turned. indicated in Figure l, the pins may project down ward into the core or the wedges may project upward into the barrel. It is preferable in this connection to have the pins non-symmetrically positioned with regard to the pivot in the wedge 46 so that the wedges will in all cases be tilted in one direction or the other. The'number of combinations possible is prac 6. In a lock of the type described, a barrel, a core ?tted to turn in the barrel, said barrel hav ing a plurality of freely movable pins engaging said core, said core being slotted for engagement of said pins, plate elements positioned in the slots tically in?nite and greater than in the original pin tumbler lock. Not only must the wedge be of said core and abutting onone end, the ends tilted in the right direction for opening the lock I but it‘ must be at the correct height so that in positioned in a keyway in said core, said slots of said pins, the other end of said plate elements engaging said grooves whereby said plate means may be moved in translatory and turning motion. '7. In a lock of the type described,'a barrel, a core ?tted to turn in the barrel, said barrel hav 1. In a lock of the type described, a barreL a core ?tted to turn in the barrel, said barrel hav ing a plurality of freely movable pins engaging said core, said core being slotted longitudinally thereof, for engagement of said pins, plate ele ments positioned in the slots of said core and abutting on one end, the ends of said pins, the other end of said plate elements positioned in a keyway in said core and adapted to be engaged having outwardly extending grooves and said plate elements having outwardly extending pins the present case the angle of the cut of the key as well as the depth of depression determines the operation of the lock. Having now described my invention, I claim: ing a plurality of freely movable pins engaging said core, said core being slotted for engagement‘ 60 of said pins, plate elements positioned in' the slots‘ of said core and‘abutting on one end, the ends. of said pins, the other end of said plate elements positioned in a keyway in said core, said slots having outwardly extending grooves, ‘said plate elements having one side formed with an obtuse ing a plurality of freely movable pins engaging angle, and outwardly extending pins non-sym metrically positioned with respect to apex of said angle and engaging said grooves whereby said plate means may be moved in translatory and said core, said core being slotted for engage turning motion. by the key entering the lock, 2. In a lock of the type described, a barrel, a core ?tted to turn in the barrel, said barrel hav ment of said pins, plate elements positioned in MOREY E. WOLLIN.